Q1. Hugo averages43

words per minute on a typing test with a standard deviation of12.5

words per minute. Suppose Hugo's words per minute on a typing test are normally distributed. LetX=

the number of words per minute on a typing test. Then,XN(43,12.5)

.

Suppose Hugo types76

words per minute in a typing test on Wednesday. Thez

-score whenx=76

is ________. Thisz

-score tells you thatx=76

is ________ standard deviations to the ________ (right/left) of the mean, ________.

Correctly fill in the blanks in the statement above.

Select the correct answer below:

Suppose Hugo types76

words per minute in a typing test on Wednesday. Thez

-score whenx=76

is2.64

. Thisz

-score tells you thatx=76

is2.64

standard deviations to theleftof the mean,43

.

Suppose Hugo types76

words per minute in a typing test on Wednesday. Thez

-score whenx=76

is2.129

. Thisz

-score tells you thatx=76

is2.129

standard deviations to therightof the mean,43

.

Suppose Hugo types76

words per minute in a typing test on Wednesday. Thez

-score whenx=76

is2.129

. Thisz

-score tells you thatx=76

is2.129

standard deviations to theleftof the mean,43

.

Suppose Hugo types76

words per minute in a typing test on Wednesday. Thez

-score whenx=76

is2.64

. Thisz

-score tells you thatx=76

is2.64

standard deviations to therightof the mean,43

.

Q2. Hugo averages74

words per minute on a typing test with a standard deviation of5.5

words per minute. Suppose Hugo's words per minute on a typing test are normally distributed. LetX=

the number of words per minute on a typing test. Then,XN(74,5.5)

.

Suppose Hugo types79

words per minute in a typing test on Wednesday. Thez

-score whenx=79

is ________. Thisz

-score tells you thatx=79

is ________ standard deviations to the ________ (right/left) of the mean, ________.

Correctly fill in the blanks in the statement above.

Select the correct answer below:

Suppose Hugo types79

words per minute in a typing test on Wednesday. Thez

-score whenx=79

is0.909

. Thisz

-score tells you thatx=79

is0.909

standard deviations to theleftof the mean,74

.

Suppose Hugo types79

words per minute in a typing test on Wednesday. Thez

-score whenx=79

is3.765

. Thisz

-score tells you thatx=79

is3.765

standard deviations to theleftof the mean,74

.

Suppose Hugo types79

words per minute in a typing test on Wednesday. Thez

-score whenx=79

is3.765

. Thisz

-score tells you thatx=79

is3.765

standard deviations to therightof the mean,74

.

Suppose Hugo types79

words per minute in a typing test on Wednesday. Thez

-score whenx=79

is0.909

. Thisz

-score tells you thatx=79

is0.909

standard deviations to therightof the mean,74

.